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    Line laser imager for thermoplastic selective laser sintering
    11.
    发明授权
    Line laser imager for thermoplastic selective laser sintering 有权

    公开(公告)号：US10717230B2

    公开(公告)日：2020-07-21

    申请号：US15184676

    申请日：2016-06-16

    Applicant: XEROX CORPORATION

    Inventor： Chu-heng Liu

    IPC: B29C64/153 ,  B29C64/268 ,  B29C64/20 ,  B22F3/105 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29K105/00 ,  B29K101/12

    Abstract: A method for printing an object using a high power one-dimensional (1D) line laser imager for selective laser sintering of thermal plastics. The technique is a two-step process. First, a layer of fresh powder is deposited on top of an existing powder bed. Second, the powder is sintered with the line laser print head. The laser is modulated at the source or with a spatial light modulator. Multiple passes or imagers can be used for increased part width and productivity. Using the relative travel between energy receiving surface and the laser print head in the direction perpendicular to the laser imaging line, a 2D pattern is imaged. Multiple print head can be aligned and joined to form a wider laser print head.

    System for treating the surfaces of three-dimensional (3D) objects prior to printing the surfaces
    14.
    发明授权
    System for treating the surfaces of three-dimensional (3D) objects prior to printing the surfaces 有权

    公开(公告)号：US10457070B2

    公开(公告)日：2019-10-29

    申请号：US15482100

    申请日：2017-04-07

    Applicant: Xerox Corporation

    Inventor： Jason M. LeFevre ,  Paul J. McConville ,  Chu-heng Liu ,  Erwin Ruiz ,  James A. Winters

    IPC: B41J3/407 ,  B41J11/00 ,  B05C9/10 ,  B05D3/04

    Abstract: An object surface treatment system facilitates the treatment of articles of manufacture before they are printed. The system includes a chamber having walls and a lid configured to close the chamber, a flexible member mounted to the lid of the chamber, a vacuum source operatively connected to an interior volume of the chamber, and a plurality of actuators. A controller is configured to operate the actuators and vacuum source to move the applicator to apply a chemical to the flexible member, move the lid to close the chamber, produce a vacuum within the chamber and move a portion of the surface of the flexible member into engagement with a surface of an object within the chamber, cease operation of the vacuum source to enable the flexible member to return to a position adjacent the lid, and remove the lid from the chamber for removal of the object from the chamber.

    Electrostatic 3-D printer controlling layer topography using aerosol applicator
    16.
    发明授权
    Electrostatic 3-D printer controlling layer topography using aerosol applicator 有权

    公开(公告)号：US10118337B2

    公开(公告)日：2018-11-06

    申请号：US15173777

    申请日：2016-06-06

    Applicant: Xerox Corporation

    Inventor： William J. Nowak ,  Jorge A. Alvarez ,  Robert A. Clark ,  Michael F. Zona ,  Chu-heng Liu ,  Paul J. McConville

    IPC: B29C64/165 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/147

    Abstract: A 3-D printer includes build and support material development stations that electrostatically transfer build material and support material to an ITB. The ITB transfers a layer of build and support material to a platen each time the platen contacts one of the layers on the ITB, to successively form a freestanding stack of the layers on the platen. A sensor is positioned to generate a topographic measurement of the layer on the platen, and an aerosol applicator is positioned to propel build and support material on to the layer on the platen. The aerosol applicator controls the build and support material being propelled, based on the topographic measurement from the sensor through a feedback loop, to adjust the amount and location of the build material and the support material propelled on to the layer, and thereby control the flatness of surface topology of the layers in the freestanding stack on the platen.

    SYSTEM AND METHOD FOR OPERATING AN AQUEOUS INKJET PRINTER TO COAT MEDIA PRIOR TO PRINTING IMAGES ON THE MEDIA WITH THE AQUEOUS INKJET PRINTER
    18.
    发明申请
    SYSTEM AND METHOD FOR OPERATING AN AQUEOUS INKJET PRINTER TO COAT MEDIA PRIOR TO PRINTING IMAGES ON THE MEDIA WITH THE AQUEOUS INKJET PRINTER 有权
    在使用水性喷墨打印机在介质上打印图像之前，要将水性喷墨打印机打印到打印机上的系统和方法

    公开(公告)号：US20170008311A1

    公开(公告)日：2017-01-12

    申请号：US14791819

    申请日：2015-07-06

    Applicant: Xerox Corporation

    Inventor： Chu-heng Liu

    IPC: B41J11/00

    CPC classification number: B41J11/0015

    Abstract: An aqueous inkjet printer coats media with a material prior to printing without having to dry the material on the media. The printer includes a coating applicator for applying the material to the surface of a rotating member and a dryer for evaporating water from the material to raise its viscosity to a gel-like state. The coating is transferred to media in a nip formed between the rotating member and a roller.

    Abstract translation: 水性喷墨打印机在打印之前用材料涂布介质，而不必干燥介质上的材料。 打印机包括用于将材料施加到旋转构件的表面的涂布器和用于从材料蒸发水的干燥器，以将其粘度提高到凝胶状状态。 涂层在形成在旋转构件和辊之间的辊隙中转移到介质。

    Discontinuous Layer Of Auxiliary Transfer Fluid
    19.
    发明申请
    Discontinuous Layer Of Auxiliary Transfer Fluid 审中-公开
    辅助转移液不连续层

    公开(公告)号：US20150273818A1

    公开(公告)日：2015-10-01

    申请号：US14230518

    申请日：2014-03-31

    Applicant: Xerox Corporation

    Inventor： David A. Mantell ,  Chu-heng Liu ,  Srinivas Mettu

    IPC: B41J2/005

    CPC classification number: B41J2/01 ,  B41J2002/012

    Abstract: A device includes a substrate; and a discontinuous layer disposed on a surface of the substrate, wherein the discontinuous layer is formed from non-contiguous drops of auxiliary fluid which do not draw back or pool on the substrate when a fluid drop is deposited thereon. A method for ink jet printing includes providing a discontinuous layer formed from drops of auxiliary fluid on a transfer member, wherein the drops of auxiliary fluid are non-contiguous and do not draw back or pool on the substrate when an ink drop is deposited thereon; ejecting ink droplets to form an ink image on the discontinuous layer; and transferring the ink jet image from the transfer member to a recording medium. An intermediate transfer member of an ink jet printer includes a substrate; and a discontinuous layer disposed on a surface of the substrate. An ink jet printer includes a transfer member; and a discontinuous layer disposed on a surface of the transfer member.

    Abstract translation: 一种器件包括：衬底; 以及设置在所述基板的表面上的不连续层，其中所述不连续层由不连续的辅助流体液滴形成，当液体沉积在其上时，所述辅助流体不会在所述基板上回缩或沉积。 一种用于喷墨打印的方法包括：在传送构件上提供由辅助流体滴形成的不连续层，其中当墨滴沉积在其上时，辅助流体的液滴不连续并且不会在基底上回缩或沉积; 喷射墨滴以在不连续层上形成油墨图像; 并将喷墨图像从转印部件转印到记录介质上。 喷墨打印机的中间转印部件包括基板; 以及设置在所述基板的表面上的不连续层。 喷墨打印机包括转印部件; 以及设置在转印部件的表面上的不连续层。

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